Patents by Inventor Nina T. Pavlovskaya

Nina T. Pavlovskaya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4129550
    Abstract: A self-lubricating heat-resistant material which, in accordance with the invention, comprises from 20 to 90 percent by weight of a polymer binder, viz. poly(butadiene) with a degree of cross-linking from 30 to 95 percent, and from 10 to 80 percent by weight of an antifriction filler, viz. molybdenum disulphide, graphite, boron nitride or a mixture thereof; said material is produced, in accordance with the invention, by pressing a composition consisting of from 20 to 90 percent by weight of poly(butadiene) of molecular weight between 20,000 and 800,000 and from 10 to 80 percent by weight of said antifriction filler, the process being effected at a temperature in the range from 200.degree. to 330.degree. C. and a pressure of from 1,000 to 7,000 kg/sq.cm.The self-lubricating heat-resistant material of the invention exhibits thermal stability at temperatures of up to 350.degree. C., a stable coefficient of friction and excellent wear resistance in the temperature range from -150.degree. to +350.degree. C.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: December 12, 1978
    Inventors: Nikolai S. Nametkin, Georgy V. Vinogradov, Jury Y. Podolsky, Nina T. Pavlovskaya, Ernest I. Frenkin, Jury G. Yanovsky